Free game review and PGN analyzer
Enter a Chess.com or Lichess username, paste a PGN or import a .pgn file. Stockfish scores accuracy, flags blunders and brilliant moves and shows the best line you missed.
No game at hand? Try a short fictional one, analyzed live.
Enter your Chess.com or Lichess username above to review your last games — accuracy, blunders, brilliant moves and key moments.
How it works
Create a free account to link Chess.com or Lichess, analyze your whole history and track your accuracy and recurring mistakes over time.
Start for freeAfter the review
Start with the example game above if you do not have a PGN. The moves are legal, but the players are fictional. The tool calculates the review after you load the example; no score is prefilled.
After 1. e4 e5 2. Bc4 Nc6 3. Qh5, pause with Black to move. What do the queen on h5 and bishop on c4 both attack?
Both attack f7. In the example, 3…Nf6 attacks the queen but allows 4. Qxf7#. Look for your opponent’s immediate threat before choosing a developing move.
Select the critical move in the report, follow the suggested continuation and explain the difference in plain words: a piece is lost, a mating threat is stopped, or a pawn is recovered. An evaluation number alone is not the explanation.
Write one habit to test in the next game, such as “check queen and bishop threats before developing.” Practise against a free chess bot, then review your next game for that same mistake.
Accuracy and labels depend on the engine analysis and the site’s classification rules. They are not an Elo rating, and another service may label the same move differently. A short forced game can score very differently from a long, complicated one. Compare recurring decisions, not just percentages.
For a closer look at one position, use the analysis board. For the labels in the report, see the move classification guide.
Load the fictional queen safety example above. After 1. e4 e5 2. Qh5 Nc6, White can take the e5 pawn with check. Before opening the answer, ask whether the queen is safe on e5. The live review computes its own evaluation and label; those may differ from another site's labels.
In the sample, 3. Qxe5+ Nxe5 loses the queen to the knight on c6. Find a move that keeps the queen safe, then compare it with Stockfish's line in the review.
Use “retry a mistake from this same game” below the analyzed board. The same PGN opens in Personal Blunder Puzzles, where depth-18 analysis selects eligible mistakes and restores the position before each error. Try the move on the board, then keep that exact position and its original game in a private Study. If no mistake meets the engine threshold, the tool says so instead of inventing an exercise.
No daily review limit, no paywall, no sign-up to get started. Review as many games as you like, from both Chess.com and Lichess. See the factual Chess.com Game Review comparison before choosing which review fits your workflow.
Create a free accountFAQ
Yes. Analyzing your last 20 games is free, with no account and no credit card. The engine runs in your browser, so there is no per-analysis cost.
Chess.com and Lichess. Enter your public username on either platform to fetch recent games, or use the PGN analyzer with a game exported from any chess site or app.
Yes. Open the PGN tab, import a .pgn file and start the review. You can also paste one or more PGN games directly. The file is read locally in your browser rather than uploaded.
Each move is scored from how much winning chance it gave up, using Lichess's published win-percentage model. The per-game number blends a volatility-weighted mean with a harmonic mean, so a single blunder is not diluted by many easy moves. Chess.com uses a separate, rating-sensitive Expected Points model for its move labels.
A brilliant move is a sound sacrifice: you give up real material, the move is the engine's best or near-best, and your position stays winning or equal. It does not need to be the only move that holds.
ChessDesk is an independent alternative, not a copy of Chess.com Game Review. It reviews recent public Chess.com and Lichess games without sign-up and uses fixed, published win-percentage thresholds. Chess.com's current move labels use a rating-sensitive Expected Points model.
Enter your Chess.com or Lichess username, pick a recent game and Stockfish reviews every move in your browser. There is no daily review limit, no cost and no account needed. Very long games are analyzed on demand rather than pre-analyzed in the background.
No. Everything runs in your browser. Nothing is uploaded or stored unless you create an account to save your history.
More free chess tools
Explore a single position on the online chess analysis board, let the next chess move calculator find the best move from a FEN or a screenshot, build your openings with the free opening repertoire builder, read what every label in your report means in the move classifications guide, sharpen your tactics with free chess puzzles, check a rating with the chess Elo calculator, or head back to the ChessDesk workspace.